31532322306164 has 6 divisors (see below), whose sum is σ = 55181564035794. Its totient is φ = 15766161153080.

The previous prime is 31532322306113. The next prime is 31532322306167. The reversal of 31532322306164 is 46160322323513.

It can be written as a sum of positive squares in only one way, i.e., 19558577010064 + 11973745296100 = 4422508^2 + 3460310^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31532322306167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3941540288267 + ... + 3941540288274.

It is an arithmetic number, because the mean of its divisors is an integer number (9196927339299).

Almost surely, 2^{31532322306164} is an apocalyptic number.

It is an amenable number.

31532322306164 is a deficient number, since it is larger than the sum of its proper divisors (23649241729630).

31532322306164 is a wasteful number, since it uses less digits than its factorization.

31532322306164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883080576545 (or 7883080576543 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

Adding to 31532322306164 its reverse (46160322323513), we get a palindrome (77692644629677).

The spelling of 31532322306164 in words is "thirty-one trillion, five hundred thirty-two billion, three hundred twenty-two million, three hundred six thousand, one hundred sixty-four".